A light and dark trough methodology for measuring rates of lotic periphyton settlement and net growth

Bothwell, Max L.; Jasper, Steve

doi:10.1007/978-94-009-7293-3_33

Cited by 12 publications

(10 citation statements)

References 18 publications

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“…True population growth rates cannot be determined from these data, because the colonization and loss rates are unknown (Sand-Jensen 1983;Bothwell and Jasper 1983). However, our estimates of net accumulation suggest that the periphyton assemblages in Spring Creek have the potential for high biomass turnover and recovery following a scouring disturbance or grazing.…”

Section: Periphyton Chlorophyll and Net Accumulationmentioning

confidence: 93%

Spatio-temporal variation of periphyton biomass and accumulation in a temperate spring-fed stream

Godwin

Carrick

2007

Aquat Ecol

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Spatio-temporal variation of plant populations often can demonstrate synchronous patterns, particularly within highly connected landscapes. Periphyton biomass (chlorophyll a) and net accumulation were measured at five sites in a spring-fed fourth-order stream located in central Pennsylvania with a mixed land-uses watershed (Spring Creek, USA) to characterize longitudinal variation within the stream. Samples were collected at three-week intervals over one year to describe seasonal patterns of periphyton biomass and net production (n = 17 per site). Spring Creek periphyton biomass and net accumulation increased dramatically from the headwaters to downstream (range 10-1,000 mg/m 2 ). The downstream reaches had exceptionally large algal biomass (chlorophyll a [ 300 mg/m 2 ) and potential for rapid turnover. Varying degrees of seasonality were observed among the sites, with upstream sites showing more temporal variation but no distinct seasonal pattern. Despite this, large-scale disturbances within the watershed seem to promote synchrony among sites throughout the stream as reflected by close correlations in chlorophyll values (Pearson correlation coefficient r [ 0.50).

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Section: Periphyton Chlorophyll and Net Accumulationmentioning

confidence: 93%

Spatio-temporal variation of periphyton biomass and accumulation in a temperate spring-fed stream

Godwin

Carrick

2007

Aquat Ecol

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“…Exponential growth of periphyton often occurs on newly exposed artificial substrata (Eichenberger 1975;Bacon and Tyler 1976;Bothwell 1983) and has also been observed for microalgae on sediments during spring blooms (Hickman and Round 1970;SandJensen 1983). During the exponential phase the periphyton layer is usually thin, the biological structure is relatively simple (SandJensen 1983) and algal growth reaches maximum rates.…”

mentioning

confidence: 84%

“…Kevem et al 1966;Eichenberger 1975;Bacon and Tyler 1976;Bothwell 1983). Eichenberger (1975) distinguished three stages of periphyton development: an early colonization with a linear or exponential increase in biomass; a saturated phase where biomass changes are small; and a phase with fluctuating biomass due to changes in factors other than algal growth.…”

mentioning

confidence: 99%

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Dynamics of epiphyton on eelgrass (Zostera marina L.) leaves: Relative roles of algal growth, herbivory, and substratum turnover1

Borum

1987

Limnology & Oceanography

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Biomass accumulation of epiphytic algae on eelgrass leaves with leaf age was measured during three periods in Roskilde Fjord, Denmark. Epiphyte biomass increased exponentially with leaf age during the first 10–14 d of colonization. On older leaves epiphyton gradually approached a phase with only small changes in biomass. Algal doubling times, calculated from biomass accrual, were between 3.6 and 4.6 d on young leaf segments and increased to more than 14 d on old leaves. When corrected for biomass losses due to invertebrate grazing, algal doubling time was only 5.8 d on old leaves in August 1983. In this period grazing accounted for the bulk of epiphyte biomass losses and was a more important factor than eelgrass leaf renewal in reducing epiphytic load. As a conservative estimate, the epiphyte community contributed 4–5 times more to total aboveground production in the eelgrass bed than was indicated by its biomass contribution.

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“…Whittford, 1960;Whittford & Schumacher, 1961, 1964Mc Intire, 1968;Smrchek et al, 1976;Rodgers et al, 1978;Clark et al, 1980;Bothwell & Stockner, 1980;Bothwell & Jasper, 1983;Bothwell, 1983;Horner et al, 1983;Meier & Dilks, 1984).…”

Section: Introductionmentioning

confidence: 99%

The use of periphyton communities for nutrient removal from polluted streams

Vymazal

1988

Hydrobiologia

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The results of experiments on the efficiency of periphyton communities for nutrient removal from polluted streams in a continuous flow-through are given. The artifical stream (5 m x 0.7 m x 0.5 m) was made of wood, with silon (a kind of nylon) screens, as a substratum for periphyton growth. The elimination of nutrients was monitored by ammonium, nitrite, nitrate and orthophosphate analyses. In addition, the elimination of organics and the decrease in trophic state were determined. During two field experiments a marked elimination of nitrogen and phosphorus was demonstrated. The maximum efficiency of ammonium and orthophosphate removal was 80% and 70%, respectively. Organic removal reached 35% (C.O.D.Mn-Kubel) and 54% (B.O.D. 5 ). Inorganic and organic nutrient elimination caused significant changes in periphyton community structure in the outflow portion of the through, evaluated by the saprobic index and the similarity coefficient. The experiments confirmed that periphyton communities are a useful means of nutrient removal from polluted streams.

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A light and dark trough methodology for measuring rates of lotic periphyton settlement and net growth

Cited by 12 publications

References 18 publications

Spatio-temporal variation of periphyton biomass and accumulation in a temperate spring-fed stream

Spatio-temporal variation of periphyton biomass and accumulation in a temperate spring-fed stream

Dynamics of epiphyton on eelgrass (Zostera marina L.) leaves: Relative roles of algal growth, herbivory, and substratum turnover1

The use of periphyton communities for nutrient removal from polluted streams

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